Rolling-mill.



V. E. EDWARDS.

ROLLING MILL.

APPLICATION FILED JAN.1'7,1E]07 Patented 0013. 8, 1912.

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ROLLING MILL.

APPLICATION FILED JAN. 17, 1907.

Patented Oct 8, 1912.

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Witnesses 28 m DTOWL Ma ttorn eg NITED STATES OFFICE.

VICTOR E. EDWARDS, 0F WORCESTER, MASSACHUSETTS, ASSIGNOR TO MORGAN CON-STRUCTION COMPANY, OF WORCESTER. MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

ROLLING-MILL.

Specification of Letters Patent.

Patented Oct. 8, 1912.

To all whom it may concern:

Be it known that I, VICTOR E. EDWARDS, a citizen of the United States,residing at Worcester, in the county of \Vorccster and Commonwealth ofMassachusetts, have in-E vented a new and useful Improvement 1n,Rolling-Mills, of which the following is a' specification, accompaniedby draw ngs forming a part of the same, in which Figure 1 represents inplan view a roll-; ing mill embodying my-invention. F1g. 1s a plan Viewof a portion of the rolling mill, showing a changed position of thetrains of' rolls from that represented in Fig. 1. Fig.9

'3 is a sectional view on a larger scale on line 3-3 Fig. 1, showing twotrains of rolls, in end elevation and Fig. 4 isa side elcva-' tion ofone of the movable trains of rolls.

Similar reference letters and figures re't'erf to similar parts in thediiierent views. v

My present invent-ion relates to a rolling; mill for the continuousreduction of a metal bar, comprising a series of pairs of rolls eachjournaled in a roll housing and providcd with channels or repeaters forcon-. ducting a metal bar from one pair of rolls to anotherconsecutively, and my invention. relates particularly to the finishingrolls of' the series by which the exact dimensions required are given tothe finished product.

The object of my invention is to enable the product to be changed atwill without necessitating a prolonged interruption of; the operation ofthe mill, such as would be required to change one or more pairs in theirrespective housings.

By my improvement I divide the rolls of the finishing mills intoseparate trains of rolls, with the roll housings of each train of rollsmounted upon bases which are'longitudinally movable on tracks or ways,and? I provide duplicate trains of rolls, simi larly mounted and movablelongitudinally on contiguous parallel ways with actuating mechanism formovingeach of the dup icate trains of rolls into and out of operativeposition.

Referring to the accompanying drawings 1. denotes rolls for the initialreduction of a heated billet as it is taken from the furnace and therolls 2 and 3 form what is known the finishing mill in which a metal bardelivered from the rolls 1 is reduced to the required size and shape anddelivered upon a cooling bed 4. The rolls 2 are journaled in pairs inhousings 5 which are mounted upon a base (i longitudinally movable on atrack 7 and constituting a single train of rolls A which are capable ofbeing moved into and out of operative position on the track 7. The rolls3, comprise the two last pair of rolls in the finishing mill and arejournalcd in housings 8 similarly supported on a base i), constituting atrain B capable of being moved on the track 7 in and out of operativeposition. The metal bar received from the rolls 1 is conducted throughchannels or repeaters in the usual manner from one pair of rolls to thenext succeeding pair of rolls. The repeaters comprise curved sections 10supported upon the floor 11 of the mill and removable straight sections12 connecting. the curved sections with the passes of the rolls.

Adjacent to and parallel to the track 7 is a similar track 13 andlongitudinally movable thereon are the bases 14 and 15. On the base 1-1are mounted roll housings 16 in which are journaled the rolls l7constituting a single train C. On the base 15 are mounted the rollhousings 18 in which are journaled the rolls 19 constituting a singletrain D. The bases and housings of the trains C and D are a duplicate ofthose in trains A and B and as the trains C and D are capable of beingsubstituted for the trains A and B I term the former substitutional andthe latter operative trains.

I do not confine myself to any particular means for rotating the rollsof the respective trains but I prefer to employ electric motors 20mounted upon and movable with the bases of the several trains. I do notconfine myself Ito any specific means for moving the trainslongitudinally on the tracks 7 and 13 but this may be convenientlyaccomplished, as shown in the accompanying drawings, by providing theroa s-as bases of the trains with cuts indicated the broken lines'lengaging screws 23, 2 and The screws and are rotated simultaneously inopposite directions by right and left hand Worm gear con nections 26 and2'l WllJl1 ashei't 28. screws 24 and 25 are similarly rotated inopposite clirectiohs by right and left hand Worm gear connections 26 and27 with a shaft 29 the shafts 28 and 29 are driven by motors 30. Thetracks and the housings of the trains, for convenience, are depressed asshown in Fig. 3 in order to bring the passes in the horizontal plane ofthe curved sections 10 of the repeaters. In Fig. 1 the trains A and Bare shown inoperative position, but in case a change is desired in theshapeor size, in cross section, of the finished product suitable rolls19 therefor are installed iii the train D without interrupting theoperatiorr of therolls in train B. simultaneously operating the screws22 and 23 the trains l3 and D are moved in opposite directions on thetracks '1 and 13, moving the train ll out of operative position and thetrain D into operative position as shown in. Fig. 53, each train beingmoved as a ,unit, The removable straight sections of the repeaters,which are of ditl'erent lengths on opposite sides of the rolls aretransferred and the operation. of mill may he resumed with the trains Aand ill in operative posi ion, in like manner the trains A C may heshifted bodily on the tracks '2' and 13 by the rotation of the screwsand ihe consecutive reduction oi a metal 2". bar therefore may hecarried on through.

the joint operation of either trains A and B as shown in. Fig. l, oftrains and-D, of trains C and or trains C and 3. Whenever any change ofrolls becomes necessary in order to change the track or for otherreasons such change can he made in the trains which are in inoperativeposition and the trains quickly shifted with but slight interruption1n-the operation the mill. l

In practice any slight changes in the shape or size or the product canbe made by simply shifting the trains B and B thereby changing the twolast pair of rolls in the mill. A division of the series of rollstorming the finishing mill may he made at any desired point in thereduction of a metal ban but in practice I prefer to place the two lastpairs of rollsin a single train.

' 1 claim,

1. In a rolling mill, the combination with a series of pairs of rollsarranged for the reduction of a metal bar, of means "for withdrawing apair of rolls from said series, and means for guiding another pair of.into operative relation with said remaining rolls in said series,

2. In. a rolling mill, the combination with a series of pairs or cellsarranged for the reduction of a metal bar, of means for with l, "in arolling mill, the coinhination of a pair oi parallel tracks, a train ofrolls supported on each of said tracks and means for moving said trainson their respective tracks, whereby either of said trains is broughtinto or out of position for conjoint action with the remainder of themill.

in a rolling mill, the combination with a pair of parallel tracks, of atrain of rolls supported on each of said tr cks, screws for moving saidtrains longitudinally on said tracks and means for simultaneouslyactuating said screws.

6. In a rolling mill, the combination with a series or sets ct rollsarranged for ie its means of rotation, of means for Willdrawing a singlesupporting ease to luring the supported set of rolls out of operativerelation with the remaining sets of rolls,

and means onerative relation with the remaining sets or rolls.

"Z. In a rolling mill, the combination with a series of pairs of rollsarranged for the reduction of a metalfhar, stationary Ways or channelsfor conducting said metal bar from each pair of rolls insaid series tothe next succeeding pair strolls, means for Withdrawing a pair of rollsfrom said series, and means for guiding another pair of rolls into aposition with relation tosaid Ways corresponding to that occupied bysaid with drawn pair of rolls.

8. In a rolling mill, the combination With a series of movable bases,each base arranged to support roll housings of reducing rolls journaledin said housings, a single horizontal track for said series of bases,and means "for moving each of said bases on said track to bring therolls on each base into and out of cooperative action for the reductionoi a metal bar.

9. in a rollihg mill, the combination with tor introdacin another base,with its supported set/oirolls into similara series of movable bases,each base am of position for cofiperaitive actien for the ranged tosupport the ho us'ings of a pair reduction of a metal bar.

of rolls a. single horizontal track for said bases, a du licat'e seriesof bases and a hori- VICTOR E 5 zontal true for said duplicate basesparal- Witnessesz.

lel with said first track, and means for RUFUS B. FOWLER,

moving each base on its track into and 'out MABEL O. FOWLER.

